1974 Z28 Suspension & Chassis Component Information

This file is a mess, but I'm trying to consolidate the spring info, the suspension info, and the yearly info into a more readable, manageable and informative package.

Front Suspension: Spring rate: 300 lb./in. Front stabilizer bar 0.938 inch. Unchanged from 1973
Rear Suspension: Spring rate: 89-99 lb./in. Rear stabilizer bar 0.69 inch. Unchanged from 1973.
Steering: Power steering standard in all Z-28's, with 14.3:1 ratio (same as in 1971 but with more road feel.)

Steering - Gear, valving & related components
Year   Part Number   Description
1973-75   7818138   (Camaro - w/PS, exc. R.T.S, sport susp). (Radial Tuned Suspension?)
1973-75   358938   (Camaro - w/PS) Gear Unit
1973-75   7808369   Camaro (exc sp. hp 350) - valve

Sway bars
Year  Part Number  Description
1973-74 3984557  (Camaro w/spec perf susp) 1.00"
1973-75 481471  (Camaro exc sp. H/per. 350) rear 0.562" diam
1970-75 3983085  (Camaro w/sp. perf susp, Z28) rear 0.688" diam

1974 Camaro Spring Charts

Chart "A", Front/Rear Base Sprung Weight

Model Front Rear
FQ87 Camaro (exc LT) 811.0603.5
FS87 Camaro (LT) 896.5633.5

Chart "B"

RPO Option Weights Front Rear
A31 Power Windows2.5 2.0
C60 Air Conditioning40.0 5.0
D55 Floor Console3.0 1.0
F41 Spec Perf. Susp. 1.0 2.5
J50 Power Brakes 5.5 0.5
LM1 (350 4bbl single exhaust) FQ87 69.5 3.0
LM1 (350 4bbl single exhaust) FS87 2.0 0.0
L48 (350 4bbl dual exhaust exc sp.h/p FQ87) 71.5 12.0
L48 (350 4bbl dual exhaust exc sp h/p FS87) 5.0 8.5
L65 (350 2bbl FQ87) 67.5 3.0
L65 (350 2bbl FS87) 0.0 0.0
M38 TH350 7.5 4.0
M40 TH400 14.5 8.0
N41 Power Steering 13.0 0.0
UA1 H.D. Battery 4.0 0.0
Radio 3.0 1.0
Z28 (350 sp. h/per FQ87) 80.5 20.0
Z28 (350 sp. h/per FS87) 12.5 12.5
Z54 Interior Decor & Sound 2.0 3.0

Chart "C"

Tires Code Front Weight Part # Code Rear Weight Part #
E78-14 AF 0 - 799 3996362 PB 0 - 627 494776
  AM-AR 800 - 861 3996364 PD 669 - over 480881
  AU 862 - 892 3996365      
  MF 893 - 954 344537      
  CR-CS

955-over

3998629

 

 
   
F70-14 AF 0 - 815 3996362 PB 0 - 642 494776
  AM-AR 816 - 877 3996364 PD 683 - over 480881
  AU 878 - 908 3996365      
  MF 909 - 970 344537      
  CR-CS 971 - over 3998629      
FR78-14 AM-AR 0 - 842 3996364 PD 642 - 674 480881
  AU 843 - 873 3996365 PE 674-over 480881
  MF 874 - 935 344537      
  CR-CS 936 - over 3998629      
F60-15 MB-MF 0 - 910 344537 TK 0 - 644 480881
(Z28) CR-CS-CU 911 - 972 3998629 SZ 644 - over 493689
    973 - over 3998629      

Spring Details
344537
3998629
480881
493689

Summary/Conclusions/Observations


Last updated: 8/12/1998
Author: MadMike Maciolek

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